2 problems

A $(1,1)$ surface in $\mathbb{F}$ is a surface of bidegree $(1,1)$ in the flag manifold, and a twistor fiber is a fiber of the twistor projection. Consider more general $(1,1)$ sur…

Let $X={\mathbb P}^1-\{0,\infty\}$ be a punctured projective line, and consider the local monodromy transformations around punctures of a twistor space associated with parabolic st…